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2020-06-20arch/openrisc: Fix issues with access_ok()Stafford Horne1-2/+6
commit 9cb2feb4d21d97386eb25c7b67e2793efcc1e70a upstream. The commit 594cc251fdd0 ("make 'user_access_begin()' do 'access_ok()'") exposed incorrect implementations of access_ok() macro in several architectures. This change fixes 2 issues found in OpenRISC. OpenRISC was not properly using parenthesis for arguments and also using arguments twice. This patch fixes those 2 issues. I test booted this patch with v5.0-rc1 on qemu and it's working fine. Cc: Guenter Roeck <linux@roeck-us.net> Cc: Linus Torvalds <torvalds@linux-foundation.org> Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Stafford Horne <shorne@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Miles Chen <miles.chen@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-05-16kill strlen_user()Al Viro1-1/+0
no callers, no consistent semantics, no sane way to use it... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-04-26Merge branches 'uaccess.alpha', 'uaccess.arc', 'uaccess.arm', ↵Al Viro1-46/+9
'uaccess.arm64', 'uaccess.avr32', 'uaccess.bfin', 'uaccess.c6x', 'uaccess.cris', 'uaccess.frv', 'uaccess.h8300', 'uaccess.hexagon', 'uaccess.ia64', 'uaccess.m32r', 'uaccess.m68k', 'uaccess.metag', 'uaccess.microblaze', 'uaccess.mips', 'uaccess.mn10300', 'uaccess.nios2', 'uaccess.openrisc', 'uaccess.parisc', 'uaccess.powerpc', 'uaccess.s390', 'uaccess.score', 'uaccess.sh', 'uaccess.sparc', 'uaccess.tile', 'uaccess.um', 'uaccess.unicore32', 'uaccess.x86' and 'uaccess.xtensa' into work.uaccess
2017-04-02Merge branch 'parisc-4.11-3' of ↵Al Viro1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux into uaccess.parisc
2017-03-29openrisc: switch to RAW_COPY_USERAl Viro1-22/+6
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-03-29openrisc: switch to generic extable.hAl Viro1-17/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-03-28new helper: uaccess_kernel()Al Viro1-1/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-03-15openrisc: fix issue handling 8 byte get_user callsStafford Horne1-1/+1
Was getting the following error with allmodconfig: ERROR: "__get_user_bad" [lib/test_user_copy.ko] undefined! This was simply a missing break statement, causing an unwanted fall through. Signed-off-by: Stafford Horne <shorne@gmail.com>
2017-03-06uaccess: drop duplicate includes from asm/uaccess.hAl Viro1-2/+0
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-03-06uaccess: move VERIFY_{READ,WRITE} definitions to linux/uaccess.hAl Viro1-3/+0
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-09-28exceptions: detritus removalAl Viro1-4/+0
externs and defines for stuff that is never used Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-09-18openrisc: fix the fix of copy_from_user()Guenter Roeck1-1/+1
Since commit acb2505d0119 ("openrisc: fix copy_from_user()"), copy_from_user() returns the number of bytes requested, not the number of bytes not copied. Cc: Al Viro <viro@zeniv.linux.org.uk> Fixes: acb2505d0119 ("openrisc: fix copy_from_user()") Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-09-14openrisc: fix copy_from_user()Al Viro1-24/+11
... that should zero on faults. Also remove the <censored> helpful logics wrt range truncation copied from ppc32. Where it had ever been needed only in case of copy_from_user() *and* had not been merged into the mainline until a month after the need had disappeared. A decade before openrisc went into mainline, I might add... Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-01-13openrisc/uaccess: fix sparse errorsMichael S. Tsirkin1-2/+2
virtio wants to read bitwise types from userspace using get_user. At the moment this triggers sparse errors, since the value is passed through an integer. Fix that up using __force. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2012-05-28openrisc: use generic strnlen_user() functionJonas Bonn1-28/+2
The generic version is both easier to support and more correct. Signed-off-by: Jonas Bonn <jonas@southpole.se> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-25openrisc: use generic strncpy_from_userJonas Bonn1-7/+3
As per commits 2922585b9329 ("lib: Sparc's strncpy_from_user is generic enough, move under lib/") and 92ae03f2ef99 ("x86: merge 32/64-bit versions of 'strncpy_from_user()' and speed it up"), and corresponding discussion on linux-arch. Signed-off-by: Jonas Bonn <jonas@southpole.se> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-02-17openrisc: included linux/thread_info.h twiceDanny Kukawka1-1/+0
arch/openrisc/include/asm/uaccess.h: included 'linux/thread_info.h' twice, remove the duplicate. Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de> Signed-off-by: Jonas Bonn <jonas@southpole.se>
2011-07-22OpenRISC: Memory managementJonas Bonn1-0/+355
Signed-off-by: Jonas Bonn <jonas@southpole.se> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
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